DuraVent Model BV DuraConnect II Double Wall Flex Connector: bends around obstacles without a pair of elbows
The DuraVent Model BV DuraConnect II Double Wall Flex Connector is a flexible section of double wall gas vent. It bends around an obstacle instead of using two elbows. An insulating air gap separates its walls, just as it does in rigid pipe. Model BV is DuraVent’s Type B gas vent, the double wall pipe that carries the exhaust from a gas furnace, boiler, or water heater out of the house. Choose a 3, 4, or 5 inch diameter, then a length of 24, 36, 48, or 60 inches.
This connector cannot be boxed in or pass through walls, ceilings, floors, or roofs. In the USA only, it can also serve as unenclosed vent in an attic or crawl space. Compress it to shorten it. Never cut it. Model BV needs 1 inch of open air from anything that can burn, including wires and insulation. Rigid vertical vent through occupied rooms is boxed in with that space preserved. Need the single wall version? See the DuraVent Model BV DuraConnect I single wall connector. The DuraVent Model BV DuraConnect II Double Wall Flex Connector ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 3BV24DW | 3BV36DW | 3BV48DW | 3BV60DW | 4BV24DW | 4BV36DW | 4BV48DW | 4BV60DW | 5BV24DW | 5BV36DW | 5BV48DW | 5BV60DW
Applications
Duravent’s Type B Gas Vent system. Use with natural gas or liquid propane Category I and draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent. Applications include: natural gas fireplaces, gas-fired furnaces, boilers, water heaters, and wall or space heating applications.
Materials and Construction
Round Type B Gas Vent 3″ – 8″ and Oval 4″ – 6″: Aluminum .012″ inner wall, galvanized .018″ outer wall, in Canada, the lengths have a galvalume .018″ outer wall. The 3″ – 8″ Round gas vent features DuraLock® and DuraTab® . The Oval gas vent features the button lock.
Round Type B Gas Vent 10″ – 18″: Aluminum .014″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.
Round Type B Gas Vent 20″ – 30″: aluminum .023″ inner wall, galvanized .018″ outer wall. DuraLock® feature for 10″ and larger diameters.
Clearances
Clearances to combustible materials in single and multi-family dwellings:
- 1″ Clearance – USA – 3″ to 30″
- 1″ Clearance – Canada – 3″ to 24″
- 2″ Clearance – Canada – 26″ to 30″
Annular insulating air space
- 3″ – 8″ Round Vent: 1/4″ air space
- 4″ – 6″ Oval Vent: 1/4″ air space
- 10″ – 30″ Round Vent: 1/2″ air space
Diameters
Listings
UL Listed to UL 441 and CAN/ULC-S605 (MH2848 and MH17667).